Wall construction



March 17,1925. 1,530,217

w. H. STEVENS v WALL CONSTRUCTION Filed Aug. 26, 1920 Invent 11.

Patented Mar. 17, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM HENRY STEVENS, OF HAMILTON, NEW ZEALAND.

To all whom it ma WALL CONSTRUCTION.

Application filed August 26, 1920. Serial No. 406,105.

y concern:

Be it known that I, VVILLIAM HENnY STEvENs, subject of the King of Great Britain, residing at Hamilton, in the Dominion of New Zealand, have invented a new and useful Improvement in Wall Construction; and I do hereby declare the following to be a full, clear, and same.

exact description of the My invention has been devised to provide for the erection of standardized dwellings,

or other structures,

by the combination of standardized pre-cast concrete members so formed as to in the erection of floors and ceilings of allow of their ready assembly the foundations, walls,

the building.

The invention has more particular reference to walls made of slabs of precast concrete and of standardized area and thickness, by means of which slabs walls of any desired height and length may be easily erected.

In the accompanying drawing, Fig. l is a r and F 1g. 2 a sectional end eleslab according to my inas shown in the drawing standardized length and height and of suitable thickness.

The slab J is made in any approved manner to obtain the required rigidity and strength and may the usual ways.

tween the slabs are lap, as shown in Fi be re-inforced in any of The horizontal joints beformed so that they overg. 2, and thereby provide a weathertight joint without the use of a binding composition. These overlapping edges are made so as to provide an outward inclination in the horizontal joint and also to leave a small air cavity J (Figure 2) between the lap in order thus to make the joint more effectively weathertight. IVhen the wall is completed it may be surfaced in any of the usual methods. 7

In the erection of these walls they are raised course by course, until the required height is reached, the several members interlocking with one another and making a firm solid wall.

I claim A wall consisting of slabs, said slabs having along their horizontal edges continuous projecting portions, said portions being opposite the faces at the opposed sides of the block, and placed in overlapping relation with adjacent slabs, the overlapping edges being inclined so as to provide outward inclinations in the horizontal joints, and also being less than half the thickness of the slab so as to leave small air cavities between the laps, thereby producing an effective WILLIAM HENRY STEVENS.

lVitnesses DAVID BROWN I-IUTToN, JOHN MoKnwsoN. 

